a=load('pyramid_MoM.dat');
b=load('pyramid_DDM.dat');

tick=[0:1:180];
figure(1);
plot(tick,a,'b-');
hold on;
plot(tick,b,'r+','MarkerSize',3);
xlabel('\theta_s');
ylabel('RCS(dBsm)');
legend('MoM','DDM');
title('VV polarization');